Korean J Orthod.  1995 Jun;25(3):287-297.

A longtudinal cephalometric study of the craniofacial growth changes of adolescence with normal occlusion

Affiliations
  • 1Department of Orthodontics, School of Dentistry, Kyungpook National University, Korea.

Abstract

This study was performed to establish the cephalometric standards and growth changes necessary to create the Growth Forecast without Treatment at adolescence. The data from biennial serial cephalometric radiographs of 25 male and 21 female subjects aged from 8 to 16 years of Normal Koreans were used for this study. The following results were obtained: 1. There were no significant value changes of facial axis angle, FH to palatal plane angle, BA-NA-A angle, lower facial height and lower incisor protrusion as the age increased. 2. From continuous increasing measurements (anterior and posterior cranial base length, facial axis length, condyle axis length, corpus axis length), the annual growth changes, average annual growth changes and changes for 8 years were obtained. 3. From continuous increasing measurements, significant differences were observed between male and female subjects in most annual growth changes after age of 12 years, average annual growth changes and changes for 8 years (p<0.05). 4. All linear and angular measurements were plotted by using X-Y plotter and personal computer. The visual norms for both sexes were obtained. There was considerable growth, for male, for each period especially the most remarkable growth from the age of 12 to 14. For female, the upmost growth was showed from the age of 10 to 12, and gradually decreased since then.

Keyword

Growth change; Normal occlusion
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